A thief noticed a policeman at a distance of 600 metres. The thief started…
2024
A thief noticed a policeman at a distance of 600 metres. The thief started running and the policeman chased him. The thief and policeman are running at speeds of 12 km/h and 15 km/h, respectively. Find the time (in minutes) required for the policeman to catch the thief.
- A.
8
- B.
10
- C.
12
- D.
15
Attempted by 6 students.
Show answer & explanation
Correct answer: C
Calculate Relative Speed: Since both are moving in the same direction, subtract their speeds: 15 km/h - 12 km/h = 3 km/h.
Convert Distance to km: 600 meters = 0.6 km.
Calculate Time in Hours: Time = Distance / Relative Speed = 0.6 km / 3 km/h = 0.2 hours.
Convert to Minutes: 0.2 hours × 60 minutes/hour = 12 minutes.
Final Answer: Option 3